Seismicity in Central North Africa at low magnitudes: A first look at the TAM event detected data base

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Teleseismic observations of seismicity in the central North Africa region show that the region is aseismic. This is true for earthquakes with a body wave magnitude greater than about 4 or so. For earthquakes with body wave magnitudes substantially below about 4, the teleseismic observations of seismicity in the central Sahara are incomplete since smaller earthquakes would probably not be detected and located by the current teleseismic monitoring networks. Only one known open seismic station has been operating in the central Sahara. This is the Tamanrasset (TAM) seismic station in southern Algeria. A simple analysis of data records from this ... continued below

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Harben, P.E., January 1, 1997.

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Teleseismic observations of seismicity in the central North Africa region show that the region is aseismic. This is true for earthquakes with a body wave magnitude greater than about 4 or so. For earthquakes with body wave magnitudes substantially below about 4, the teleseismic observations of seismicity in the central Sahara are incomplete since smaller earthquakes would probably not be detected and located by the current teleseismic monitoring networks. Only one known open seismic station has been operating in the central Sahara. This is the Tamanrasset (TAM) seismic station in southern Algeria. A simple analysis of data records from this station can be used to determine if the central Sahara is also relatively aseismic at magnitudes substantially below 4. That is the primary purpose of this study.

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20 p.; Other: FDE: PDF; PL:

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OSTI as DE98050680

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  • Other Information: PBD: Jan 1997

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  • Other: DE98050680
  • Report No.: UCRL-ID--126370
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/571106 | External Link
  • Office of Scientific & Technical Information Report Number: 571106
  • Archival Resource Key: ark:/67531/metadc689600

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  • January 1, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • Feb. 17, 2016, 4:14 p.m.

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Harben, P.E.,. Seismicity in Central North Africa at low magnitudes: A first look at the TAM event detected data base, report, January 1, 1997; California. (digital.library.unt.edu/ark:/67531/metadc689600/: accessed November 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.